The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2004
Filed:
Apr. 10, 2001
Raizo Kuge, Saitama-Ken, JP;
Sho Obara, Saitama-Ken, JP;
Hosokawa Yoko Co., Ltd., Tokyo-to, JP;
Abstract
The present invention provides a manufacturing method and apparatus of a gusset bag, capable of coping with manufacture of various types of gusset bag and permitting improvement of productivity. A pair of flat films and are separated and transferred by a transfer unit , and a side film extending in a direction perpendicular to the transfer direction of the flat films or in the same direction as the flat films and forming side surfaces and of the bag main body is inserted between the pair of flat films and . The end of the side film is folded to form an open surface at least at an end of the side film and the flat films. As a result, it is possible: (1) to manufacture a zippered gusset bag by attaching a zipper to the end of each flat film; (2) to manufacture a gusset bag having a flat bottom by attaching a bottom film to the end of each flat film; and (3) to manufacture a zippered gusset bag having a flat bottom by attaching a zipper to one end of each flat film, and a bottom film to the other end thereof.